Skate-clamp.



T. SPAOIE.

SKATE CLAMP.

APPLIOATIQN FILED DEC. 28, 1912.

Patened Nov. 4, 1913.

INVENTOR Thom as Spacie ATTORNEYS COLUMBIA PLANOGRAPH c0..wAsr-nNa'roN, n. c.

THOMAS SPACIE, or BLUE ISLAND, rumors.

SKATE- CLAMP.

Original application filed July 22, 1912, Serial No. 710,911.

Serial No. 739,065.

To all whom it may concern:

Be it known that I, THOMAS SrAorn, a

citizen of the United States, and a resident of Blue Island, in the county of Cook and State of Illinois, have invented anew and Improved Skate-Clamp, of which the following is a full, clear, and exact description.

This invention relates to skates and has particular reference to the specific construction of roller skate details, especially the means for clamping the sole plate of a skate to a shoe.

The primary object of this invention is to so construct the clamping mechanism of a roller skate as to produce an article of manufacture combining the elements of strength, cheapness, reliability and ease of manipulation, having reference particularly to the bracing connection between the clamping screw and the means for supporting the front wheel axle.

.The foregoing and other objects of this invention will hereinafter be more fully described and claimed and illustrated in the drawings accompanying this specificationin which like characters of reference indicate corresponding parts in all the views, and in which Figure 1 is a side elevation, partly in sec tion, of a sole plate having my improvement attached thereto; Fig. 2 is a vertical trans verse section substantially on the line 22 of Fig. 1; Fig. 3 is a detail on the line 33 of Fig. 1; and Fig. 4: is a detail perspective of one of the claws of the clamp.

Referring particularly to the accompanying drawings, I show at 10 a sole plate having any suitable means, shown generically at 11, for adjustably securing it to the heel plate of a roller skate.

Any suitable number and character of rollers 12 may be employed in connection with this improvement, the means herein shown for connecting the rollers to the foot plat-es comprises a pedestal 13 for each of said plates. The pedestal may be of any suitable or preferred form, but is herein shown as comprising a pair of bracket members 14 and 15 having downwardly extending parallel lugs 16 having alined holes, the axis of which extends forwardly and upwardly. The wheels are mounted upon an axle 17, the axis of which is at right angles to the aforesaid axis, and said axle is connected to the pedestal by means of an anchor 18 which includes members cooperat- Specification of Letters Patent.

Patented Nov. 4, 1913.

Divided and this application filed December 28,

ing with the aforesaid lugs 16 and connected pivotally to the pedestal through said lugs by means of a pivot pin 19.

The clamp comprises a pair of claws 20' and 21 of the character indicated in Fig. d and each consisting of a sheet metal structure including a flat body portion 22, an upwardly and inwardly projecting finger 23, and a downwardly projecting lug 24 substantially at a right angle to the body portion 22. Each of the claws is formed with a slot 25 extending substantially throughout the length of the body portion 22 and terminating in an enlarged opening 25 adjacent the upper end of the lug 2 1. A pair of studs 26 are connected permanently to the sole plate 10 and have downwardly projecting heads which are received throughv the openings 25 when the parts are being assembled, and said heads engage beneath the slots 25 constituting the means for normally supporting the claws in relation to the sole plate. A screw 27 havin ri ht and left thre ads cooperating with the lugs 24 serves to move the claws toward and from each other simultaneously.

The screw, at its central portion, is pro- Y vide d with an annular groove 28, and a clevis 29 spans the grooved portion of the screw and is connected to the forward exand the pin is strengthened especially with respect to lateral displacement of the screw and the claws. The clevis 29 is secured to the end of the pin by means of a removable cotter 30. The end of the pin 19 is slightly flattened where it enters the groove 28 and is concave where it engages or embraces the side of the screw forming a more satisfactory bearing contact for the screw thereby.

The several parts of this invention may be made of any suitable materials, preferably comparatively cheap metal, and the relative sizes and proportions of the parts may be varied to a considerable extent without departing from the spirit of the invention hereinafter claimed.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is 1. In a roller skate, the combination of an anchor including a hinge pin, a pair of claws, a screw to operate said claws, and means connecting one end of said hinge pin with said screw, substantially as set forth.

2. In a roller skate, the combination of a sole plate, a set of rollers and means to secure the rollers to the sole plate, said securing means including a hinge pin, a pair of claws a screw to operate said claws, said screw having a circumferential groove adapted to receive the end of said pin, and means embracing the screw and connected to the end of said pin to secure the parts in the relative positions indicated.

3. The combination with a sole plate, rollers, and means including a pivot pin for sefrom longitudinal movement with respect 2e thereto, and means securing the end of the aforesaid pivot pin in operative engagement with said screw and clevis.

In testimony whereof I have signed my name to this specification in the presence of 25 two subscribing witnesses.

THQMAS SPACIE. Witnesses ANDREW L. MoCoRD, ALFRED L. OE'ITER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

